This ID file is an Excel file that provides all known case ID information across the following by respondent:
In the ID file, variables TS72ID, TS74ID, TS76ID are the case IDs that are represented in the releases for the individual Time Series studies (1972, 1974, and 1976, respectively). Variables MERGED72, MERGED74, and MERGED76 provide IDs for all cases 1972, 1974 and 1976.
Participation can be tracked across the 6 data collections. Variable PAN72_74 is flagged 1 for all cases included in the 1972-1974 Panel (0 otherwise), variable PAN74_76 is flagged 1 for all cases included in the 1974-1976 Panel (0 otherwise), and variable PAN72_76 is flagged 1 for all cases in the 1972-1974-1976 Panel (0 otherwise). Variables CROSS72, CROSS74, CROSS76 are flagged 1 if a case is represented (respectively) in the 1972, 1974, or 1976 cross-section (time series) study.
Participation by wave may also be tracked using variables PRE72, POST72, POST74, PRE76 and POST76, which are coded 1 if R was interviwed in that wave (0 if not).
Within the 3 panels (not including Time-Series-only cases), membership by wave is as follows:
|number of cases||1972 pre IW||1972 post IW||1974 post IW||1976 pre IW||1976 post IW|
|1972-1974-1976 panel||1972-1974 panel||1974-1976 panel||807||X||X||X||X||X|
|1972-1974-1976 panel||1972-1974 panel||376||X||X||X||X||X|
|1972-1974-1976 panel||1972-1974 panel||1974-1976 panel||70||X||X||X||X|
|1972-1974-1976 panel||1972-1974 panel||33||X||X||X||X|
|1972-1974-1976 panel||1972-1974 panel||1974-1976 panel||3||X||X||X||X|
|1972-1974-1976 panel||1972-1974 panel||1974-1976 panel||7||X||X||X||X|
|1969 total panel cases|
*NOTE: the 1976 time series dataset includes 1 case which is not included in the merged file; it is represented in the ID file.